Give the test and result for hydrogen gas.
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Give the test and result for hydrogen gas.
The test and result for hydrogen gas is a lit / burning splint makes a 'squeaky pop' sound.
Give the formula for hydrogen gas.
The formula for hydrogen gas is H2.
True or False?
When testing for hydrogen gas, the burning splint is held at the open end of the test tube.
True.
When testing for hydrogen gas, the burning splint is help at the open end of the test tube.
Give the test and result for oxygen gas.
The test and result for oxygen gas is a glowing splint relights.
Give the formula of oxygen gas.
The formula of oxygen gas is O2.
Give the formula of carbon dioxide gas.
The formula of carbon dioxide gas is CO2.
Give the test and result for carbon dioxide gas.
The test and result for carbon dioxide gas is limewater turns cloudy / milky.
What is the chemical name for limewater?
The chemical name for limewater is calcium hydroxide.
Why is it hard to distinguish between carbon dioxide, hydrogen and oxygen?
It is hard to distinguish between carbon dioxide, hydrogen and oxygen because they are all colourless and odourless gases.
True or False?
Chlorine is a colourless, pungent gas.
False.
Chlorine is a green pungent gas
Give the test and result for chlorine gas.
The test and result for chlorine gas is that damp litmus paper turns red and then bleaches white.
Give the formula for chlorine gas.
The formula of chlorine gas is Cl2.
Why is chlorine used to treat water?
Chlorine is used to treat water as it kills bacteria.
Why does chlorine need to be handled in a fume cupboard?
Chlorine needs to be handled in a fume cupboard because it is toxic.